7 - Lesson 23 Motion of Particles Vocab

Front

What is the temperature at which a substance changes from a solid to a liquid as thermal energy is added?

Back

melting point

Tags

NGSS.MS-PS1-4

Front

What is the temperature at which a substance changes from a liquid to a gas as thermal energy is added?

Back

boiling point

Tags

NGSS.MS-PS1-4

Front

What is the state of matter in which the atoms or molecules are completely separated from each other by empty space and can move around independently?

Back

gas

Front

What is the state of matter in which atoms or molecules are closely packed and touching one another but are not held in a fixed position?

Back

liquid

Front

What is the physical form matter takes as determined by the arrangement and motion of its atoms or molecules?

Back

state of matter

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the process called when a solid turns into a liquid?

Back

melting

Tags

NGSS.MS-PS1-4

Front

What is the process called when a liquid turns into a gas?

Back

evaporation or boiling

Tags

NGSS.MS-PS1-4

Front

What is the process called when a gas turns into a liquid?

Back

condensation

Tags

NGSS.MS-PS1-4

Front

What is the process called when a liquid turns into a solid?

Back

freezing

Front

What is the term for the amount of energy required to change a substance from solid to liquid at its melting point?

Back

heat of fusion

Tags

NGSS.MS-PS1-4